
declare module Microsoft.Office.WebExtension {

    /** Specifies an item's type. */
    export enum ItemClass {
        /** Specifies an appointment item. This is an IPM.Appointment type. */
        //static Message: string;
        /** A meeting request, response, or cancellation. This corresponds to the following message classes in Outlook:
            IPM.Schedule.Meeting.Request
            IPM.Schedule.Meeting.Neg
            IPM.Schedule.Meeting.Pos
            IPM.Schedule.Meeting.Tent
            IPM.Schedule.Meeting.Canceled */
        //static Appointment: string;
    }
}